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Life Sciences

Comprehensive exploration of living organisms, biological systems, and life processes across all scales from molecules to ecosystems. Encompasses cutting-edge research in biology, genetics, molecular biology, ecology, biochemistry, microbiology, botany, zoology, evolutionary biology, genomics, and biotechnology. Investigates cellular mechanisms, organism development, genetic inheritance, biodiversity conservation, metabolic processes, protein synthesis, DNA sequencing, CRISPR gene editing, stem cell research, and the fundamental principles governing all forms of life on Earth.

447,757 articles | 2542 topics

Health and Medicine

Comprehensive medical research, clinical studies, and healthcare sciences focused on disease prevention, diagnosis, and treatment. Encompasses clinical medicine, public health, pharmacology, epidemiology, medical specialties, disease mechanisms, therapeutic interventions, healthcare innovation, precision medicine, telemedicine, medical devices, drug development, clinical trials, patient care, mental health, nutrition science, health policy, and the application of medical science to improve human health, wellbeing, and quality of life across diverse populations.

431,843 articles | 751 topics

Social Sciences

Comprehensive investigation of human society, behavior, relationships, and social structures through systematic research and analysis. Encompasses psychology, sociology, anthropology, economics, political science, linguistics, education, demography, communications, and social research methodologies. Examines human cognition, social interactions, cultural phenomena, economic systems, political institutions, language and communication, educational processes, population dynamics, and the complex social, cultural, economic, and political forces shaping human societies, communities, and civilizations throughout history and across the contemporary world.

260,756 articles | 745 topics

Physical Sciences

Fundamental study of the non-living natural world, matter, energy, and physical phenomena governing the universe. Encompasses physics, chemistry, earth sciences, atmospheric sciences, oceanography, materials science, and the investigation of physical laws, chemical reactions, geological processes, climate systems, and planetary dynamics. Explores everything from subatomic particles and quantum mechanics to planetary systems and cosmic phenomena, including energy transformations, molecular interactions, elemental properties, weather patterns, tectonic activity, and the fundamental forces and principles underlying the physical nature of reality.

257,913 articles | 1552 topics

Applied Sciences and Engineering

Practical application of scientific knowledge and engineering principles to solve real-world problems and develop innovative technologies. Encompasses all engineering disciplines, technology development, computer science, artificial intelligence, environmental sciences, agriculture, materials applications, energy systems, and industrial innovation. Bridges theoretical research with tangible solutions for infrastructure, manufacturing, computing, communications, transportation, construction, sustainable development, and emerging technologies that advance human capabilities, improve quality of life, and address societal challenges through scientific innovation and technological progress.

225,386 articles | 998 topics

Scientific Community

Study of the practice, culture, infrastructure, and social dimensions of science itself. Addresses how science is conducted, organized, communicated, and integrated into society. Encompasses research funding mechanisms, scientific publishing systems, peer review processes, academic ethics, science policy, research institutions, scientific collaboration networks, science education, career development, research programs, scientific methods, science communication, and the sociology of scientific discovery. Examines the human, institutional, and cultural aspects of scientific enterprise, knowledge production, and the translation of research into societal benefit.

193,043 articles | 157 topics

Space Sciences

Comprehensive study of the universe beyond Earth, encompassing celestial objects, cosmic phenomena, and space exploration. Includes astronomy, astrophysics, planetary science, cosmology, space physics, astrobiology, and space technology. Investigates stars, galaxies, planets, moons, asteroids, comets, black holes, nebulae, exoplanets, dark matter, dark energy, cosmic microwave background, stellar evolution, planetary formation, space weather, solar system dynamics, the search for extraterrestrial life, and humanity's efforts to explore, understand, and unlock the mysteries of the cosmos through observation, theory, and space missions.

29,662 articles | 175 topics

Research Methods

Comprehensive examination of tools, techniques, methodologies, and approaches used across scientific disciplines to conduct research, collect data, and analyze results. Encompasses experimental procedures, analytical methods, measurement techniques, instrumentation, imaging technologies, spectroscopic methods, laboratory protocols, observational studies, statistical analysis, computational methods, data visualization, quality control, and methodological innovations. Addresses the practical techniques and theoretical frameworks enabling scientists to investigate phenomena, test hypotheses, gather evidence, ensure reproducibility, and generate reliable knowledge through systematic, rigorous investigation across all areas of scientific inquiry.

21,889 articles | 139 topics

Mathematics

Study of abstract structures, patterns, quantities, relationships, and logical reasoning through pure and applied mathematical disciplines. Encompasses algebra, calculus, geometry, topology, number theory, analysis, discrete mathematics, mathematical logic, set theory, probability, statistics, and computational mathematics. Investigates mathematical structures, theorems, proofs, algorithms, functions, equations, and the rigorous logical frameworks underlying quantitative reasoning. Provides the foundational language and tools for all scientific fields, enabling precise description of natural phenomena, modeling of complex systems, and the development of technologies across physics, engineering, computer science, economics, and all quantitative sciences.

3,023 articles | 113 topics

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Vitamin D gets an A+ for treating heart disease

Women over age 65 who took vitamin D had a significant reduction in heart disease risk compared to those who didn't. The study found that vitamin D supplements reduced the risk of heart disease death by nearly one-third, but further research is needed to confirm these findings.

More good news on the health benefits of almonds

Six studies presented at the 2002 Experimental Biology conference support almonds' role in lowering 'bad' cholesterol and protecting against cell damage. Eating a handful of almonds daily may significantly reduce total and LDL cholesterol levels, and even lower risk of heart disease by up to 10%.

Apple iPhone 17 Pro

Apple iPhone 17 Pro delivers top performance and advanced cameras for field documentation, data collection, and secure research communications.

Angry young men prone to premature heart disease

A study published in Archives of Internal Medicine found that young men who express or conceal their anger are five times more likely to experience an early heart attack. The researchers analyzed data from over 1,000 medical students and found that those with the highest level of anger were more likely to develop cardiovascular disease.

Early cardiovascular disease found in asymptomatic individuals

A study by the University of Minnesota Rasmussen Center found high prevalence of covert and overt cardiovascular disease in healthy individuals. Early screening using non-invasive testing can detect risk contributors, such as family history of heart disease.

Nicorandil could improve outcome for angina patients

A randomized trial found that nicorandil reduced the risk of cardiovascular events in patients with stable angina, including deaths due to coronary heart disease and non-fatal heart attacks. The study showed a significant reduction in acute coronary syndromes and all cardiovascular events compared to the placebo group.

Apple MacBook Pro 14-inch (M4 Pro)

Apple MacBook Pro 14-inch (M4 Pro) powers local ML workloads, large datasets, and multi-display analysis for field and lab teams.

Annals of Internal Medicine, tip sheet, April 2, 2002

A study of 643 women found that C-reactive protein (CRP) levels are an indicator of increased cardiovascular risk in people with no signs of heart disease. Regular exercise has been shown to decrease blood pressure in all groups of people, regardless of their weight or ethnicity.

UF study shows strength training improves aerobic power in seniors

A new UF study demonstrates improved aerobic capacity in healthy elderly adults following both low- and high-resistance exercise training programs. This challenges the conventional view that strength training is not effective for improving cardiovascular and respiratory performance.

Gene enhances effects of estrogen on good cholesterol

Researchers found that women with a common mutation in the estrogen receptor alpha gene had dramatic increases in high-density lipoprotein (HDL), or the 'good' cholesterol. This discovery suggests that genetic testing may help doctors make better decisions about hormone replacement therapy for preventing heart disease.

Implantable heart device reduces deaths by one-third

A four-year study found that implantable cardioverter defibrillators reduce death rates by 31% in patients at risk of sudden cardiac arrest. The devices detect irregular heartbeats and deliver electrical shocks to restore normal function.

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Key predictors of heart disease in women develop as early as adolescence

A new Cincinnati Children's Hospital Medical Center study found that thickening of the heart can develop as early as adolescence in women, with obesity being the main factor. The study also discovered significant racial disparities in left ventricular hypertrophy prevalence among young African American and Caucasian women.

Treadmill exercise tests point out hidden heart disease

Two Johns Hopkins studies confirm the value of treadmill exercise tests in diagnosing heart disease before symptoms appear. Women with abnormal or inconclusive test results are up to 2.6 times more likely to die from cardiovascular disease, while men with similar test results are twice as likely to die from heart disease.

Natural antifreeze yields secrets

Researchers at the University of California, Davis have discovered how antifreeze glycoproteins interact with ice, preventing ice crystals from growing and preserving liquid water around the protein. This discovery may lead to safer storage for food or blood products and help scientists understand biomineralization.

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Mayo Clinic news briefs

A Mayo Clinic study finds an association between estrogen status and reduced coronary calcium and plaque area, suggesting a potential benefit against heart disease. Estrogen may modulate the calcium content of atherosclerotic plaques, slowing progression of atherosclerosis in women.

Stress could increase risk of heart disease in women

A study on female monkeys found that stress can reduce estrogen levels, leading to the development of atherosclerosis and increasing heart disease risk. The research highlights the importance of pre-menopausal behavioral and hormonal conditions for post-menopausal health.

New study confirms periodontal disease linked to heart disease

Researchers found diseased gums release higher levels of bacterial pro-inflammatory components, which can travel to organs like the heart and cause harm. The study supports earlier findings suggesting periodontal disease may trigger cardiovascular disease through oral bacterial components.

Rigol DP832 Triple-Output Bench Power Supply

Rigol DP832 Triple-Output Bench Power Supply powers sensors, microcontrollers, and test circuits with programmable rails and stable outputs.

Experts offer the skinny on search for healthy fat

Researchers at Purdue University recommend consuming omega-3 rich foods like fish, lean meat, fruits, and vegetables to balance fatty acids. Limiting omega-6 fat sources, such as processed meats and vegetable oils, can also help reduce chronic diseases.

A novel cardiac glycogen storage disease

A novel cardiac glycogen storage disease has been identified through research published in the Journal of Clinical Investigation. The study sheds new light on the genetic causes and consequences of this rare condition, offering potential avenues for improved diagnosis and therapy.

Foreign-born women more likely to die of heart disease than American women

A new study published in the American Journal of Preventive Medicine found that foreign-born women have a higher risk of dying from heart disease and stroke compared to U.S.-born women. The study suggests that lower rates of hormone replacement therapy use and higher rates of hypertension may be contributing factors.

DJI Air 3 (RC-N2)

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A smile a day keeps heart disease away

A scoring system characterized the men from pessimist to optimist, with optimistic men having a lower risk of coronary heart disease. Despite this protective effect, the researchers found no difference in mortality rates between optimistic and pessimistic men.

Women with higher education have less risk of heart disease

A new study published in Psychosomatic Medicine found that women with higher educational attainment have less calcification of the arteries, indicating a lower risk of developing heart disease. The analysis of 308 postmenopausal women revealed an inverse linear trend between calcium deposits and education level.

Study finds periodontal surgery best bet to keep patients smiling

A recent study by the American Academy of Periodontology found that 48% of teeth receiving periodontal surgery improved prognosis, while only 12% in non-surgical treatment groups did. The study emphasized the importance of individual teeth assessment for optimal results.

Nikon Monarch 5 8x42 Binoculars

Nikon Monarch 5 8x42 Binoculars deliver bright, sharp views for wildlife surveys, eclipse chases, and quick star-field scans at dark sites.

Regular exercise boosts immunity, fights heart disease

A six-year study found that regular low-intensity exercise, such as brisk walking four times a week, reduced CRP levels and improved blood vessel function in men. The study showed a significant reduction in inflammation markers for genetically susceptible individuals.

Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C)

Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C) keeps Macs, tablets, and meters powered during extended observing runs and remote surveys.

Positive attitude is best prevention against heart disease

Researchers discovered that individuals with positive attitudes were significantly less likely to develop heart disease, even after adjusting for traditional risk factors. The study followed 586 adults for an average of seven-and-a-half years and found that those in good spirits had lower levels of stress hormones.

Thanksgiving meals: Cooking with chemistry

A new study reveals that cranberries are the top antioxidant in fruits, while fresh berries and white wine can reduce heart disease risk. Cooking techniques like covering food with foil and using lower-protein ingredients can also help achieve a golden brown color and reduced browning.

Framingham heart study enters new phase

The Framingham Heart Study is entering a new phase by recruiting its third generation of participants to explore factors that promote the development of cardiovascular and other diseases. The study aims to identify genes contributing to good health and develop new imaging tests for early-stage coronary atherosclerosis.

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Holiday fruit ranks number one in antioxidants

A new study by the American Chemical Society ranks cranberries number one in antioxidants, making them a key component of a healthy diet and lifestyle. The study found that cranberries contain more disease-fighting phenols than other fruits, including broccoli, which has been shown to have anti-cancer properties.

Study finds colesevelam effective in reducing LDL cholesterol

A randomized, double-blind trial found colesevelam significantly lowered mean LDL levels by up to 18% without serious adverse events. This effect was independent of sex or age, making colesevelam a useful therapeutic alternative for patients with mild to moderate primary hypercholesterolemia.

Apple Watch Series 11 (GPS, 46mm)

Apple Watch Series 11 (GPS, 46mm) tracks health metrics and safety alerts during long observing sessions, fieldwork, and remote expeditions.

Fluke 87V Industrial Digital Multimeter

Fluke 87V Industrial Digital Multimeter is a trusted meter for precise measurements during instrument integration, repairs, and field diagnostics.

American Thoracic Society Journal News Tips for September

Research reveals antioxidant supplements can mitigate the negative effects of ozone gas on lung function. Additionally, tiny airborne particles are associated with increased risk of hospital admissions for heart disease among diabetics.

Blood pressure measures during exercise can indicate unhealthy hearts

Researchers found that a high pulse pressure during exercise was associated with endothelial cell dysfunction and blood-vessel stiffening, which may be an early sign of heart disease. This finding suggests that measuring blood pressure during exercise could be a more sensitive marker for detecting cardiovascular risk.

Increase in abnormal heart rhythms in shift workers

A recent study has found that shift workers are more likely to experience abnormal heart rhythms, with the risk increasing with the number of night shifts worked. The study measured changes in premature ventricular complexes and heart rate variability among employees working day and night shifts.

Poor diets may worsen health risks in spouses of smokers

Research found that nonsmoking spouses of smokers consumed unhealthy diets with high fat and cholesterol, but low fiber and essential nutrients. The study suggests that these dietary choices can exacerbate the risk of heart disease, lung cancer, and other chronic diseases in nonsmoking spouses.

Aranet4 Home CO2 Monitor

Aranet4 Home CO2 Monitor tracks ventilation quality in labs, classrooms, and conference rooms with long battery life and clear e-ink readouts.

New international survey shows people are unaware of cholesterol risk

A new international survey reveals that people are largely unaware of their cholesterol risk, with 13% believing they're at high risk for heart disease. Despite having multiple risk factors, many individuals incorrectly assess their level of risk, highlighting the need for education and awareness campaigns.

Annals of Internal Medicine, Tip Sheet, September 4, 2001

A study published in Annals of Internal Medicine found that African-American patients receive fewer heart procedures than white patients, despite having a higher risk of heart disease. Researchers suggest various factors, including patient education and physician attitudes, may contribute to these disparities.

Implanted defibrillators: How well do they work?

A new study found that implanted cardioverter defibrillators save the most lives among patients with severe heart disease who suffer from abrupt heart rhythm malfunctions. The device monitors electrical signals and acts within seconds to restore a normal heartbeat, providing life-saving benefits for high-risk patients.

CalDigit TS4 Thunderbolt 4 Dock

CalDigit TS4 Thunderbolt 4 Dock simplifies serious desks with 18 ports for high-speed storage, monitors, and instruments across Mac and PC setups.

Folic acid, Vitamin B12 show potential as heart disease treatments

Researchers from UCSF found that folic acid and vitamin B12 supplements can lower homocysteine levels by 25% and 7% respectively, resulting in a 8-13% decrease in heart disease rates and deaths. The study estimates that adding these supplements to daily grains could save $24 billion over 10 years.

Heart failure underdiagnosed in UK primary care

A UK population study found that an estimated 3.1% of adults aged 45 and older had definite or probable heart failure, highlighting the need for accurate diagnosis and targeted screening to alleviate symptoms and improve prognosis.

Meta Quest 3 512GB

Meta Quest 3 512GB enables immersive mission planning, terrain rehearsal, and interactive STEM demos with high-resolution mixed-reality experiences.

Few drawbacks to following low-fat, high-fiber diet

A new study published in Annals of Behavioral Medicine found that following a low-fat, high-fiber diet can lead to increased confidence and awareness of health and nutrition. Participants who adopted the eating plan reported no detrimental effects on taste, cost, or overall well-being.

Catechins in black tea may reduce risk of heart disease

A 10-year study of elderly Dutch men found that those who consumed the most black tea had a significantly lower death rate from ischemic heart disease. High catechin intake was associated with healthy lifestyle practices, such as a balanced diet and regular activity.

Sony Alpha a7 IV (Body Only)

Sony Alpha a7 IV (Body Only) delivers reliable low-light performance and rugged build for astrophotography, lab documentation, and field expeditions.

Gene link to increased risk of coronary heart disease found by scientists

Researchers found that a specific Apo-E gene variant increases the risk of coronary heart disease (CHD) in current smokers, with men carrying the E4 version facing a three times higher risk. The study suggests that quitting smoking can reduce this risk and highlights the importance of reducing smoking to avoid CHD.

Study: quality of neighborhood tied to coronary heart disease

A new study found that living in poorer neighborhoods increases the likelihood of developing coronary heart disease, with a 70-90% higher risk for whites and 30-50% for blacks. The study controlled for individual factors but still showed a significant link between neighborhood quality and heart disease risk.